SAP-C02 学习助手

SAP-C02 第 253 题

EC2 CloudWatch Config Auto Scaling

题目

An entertainment company recently launched a new game. To ensure a good experience for players during the launch period, the company deployed a static quantity of 12 r6g.16xlarge (memory optimized) Amazon EC2 instances behind a Network Load Balancer. The company's operations team used the Amazon CloudWatch agent and a custom metric to include memory utilization in its monitoring strategy. Analysis of the CloudWatch metrics from the launch period showed consumption at about one quarter of the CPU and memory that the company expected. Initial demand for the game has subsided and has become more variable. The company decides to use an Auto Scaling group that monitors the CPU and memory consumption to dynamically scale the instance fleet. A solutions architect needs to configure the Auto Scaling group to meet demand in the most cost-effective way. Which solution will meet these requirements?

中文翻译:
一家娱乐公司最近推出了一款新游戏。为了确保玩家在发布期间获得良好的体验,该公司在网络负载均衡器后面部署了静态数量的 12 个 r6g.16xlarge(内存优化)Amazon EC2 实例。该公司的运营团队使用 Amazon CloudWatch 代理和自定义指标将内存利用率纳入其监控策略。对发布期间的 CloudWatch 指标的分析显示,CPU 和内存消耗量约为公司预期的四分之一。最初对游戏的需求已经减弱,并且变得更加多变。该公司决定使用 Auto Scaling 组来监控 CPU 和内存消耗,以动态扩展实例队列。解决方案架构师需要配置 Auto Scaling 组,以便以最具成本效益的方式满足需求。哪种解决方案可以满足这些要求?

选项

A. Configure the Auto Scaling group to deploy c6g.4xlarge (compute optimized) instances. Configure a minimum capacity of 3, a desired capacity of 3, and a maximum capacity of 12.

中文翻译:
配置 Auto Scaling 组以部署 c6g.4xlarge(计算优化)实例。配置最小容量为 3、所需容量为 3、最大容量为 12。

B. Configure the Auto Scaling group to deploy m6g.4xlarge (general purpose) instances. Configure a minimum capacity of 3, a desired capacity of 3, and a maximum capacity of 12.

中文翻译:
配置 Auto Scaling 组以部署 m6g.4xlarge(通用)实例。配置最小容量为 3、所需容量为 3、最大容量为 12。

C. Configure the Auto Scaling group to deploy r6g.4xlarge (memory optimized) instances. Configure a minimum capacity of 3, a desired capacity of 3, and a maximum capacity of 12.

中文翻译:
配置 Auto Scaling 组以部署 r6g.4xlarge(内存优化)实例。配置最小容量为 3、所需容量为 3、最大容量为 12。

D. Configure the Auto Scaling group to deploy r6g.8xlarge (memory optimized) instances. Configure a minimum capacity of 2, a desired capacity of 2, and a maximum capacity of 6.

中文翻译:
配置 Auto Scaling 组以部署 r6g.8xlarge(内存优化)实例。配置最小容量为 2、所需容量为 2、最大容量为 6。

答案

C

解析

正确答案:C 解析: 本题应选择 C。 正确选项: C. 配置 Auto Scaling 组以部署 r6g.4xlarge(内存优化)实例。配置最小容量为 3、所需容量为 3、最大容量为 12。 选择理由: 该选项最直接地满足题干中的关键约束。做 SAP-C02 题目时,需要同时对照题干里的限定词,例如最高性能、最低运维开销、成本效益、可靠性、可扩展性、安全性、RTO/RPO、合规要求等。本题相关考点主要包括:EC2、CloudWatc...

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